Aijun Liu received a B.S. degree in industrial engineering, an M.S. degree in management science and engineering, and a Ph.D. degree in industrial engineering from Chongqing University, Chongqing, China, in 2004, 2007, and 2011, respectively. From April 2014 to April 2015, he worked as a Visiting Scholar at Arizona State University, Tempe, AZ, USA. He is currently an Associate Professor in the Department of Management Engineering, School of Economics and Management, Xi Dian University, Xi'an, China. He has more than 50 publications in journals, book chapters, and conference proceedings. His research interests include Product Design, Job Shop Scheduling, Artificial Intelligence, Supply Chain Management, Decision Making, and Computing with Words.